Challenges of pricing electricity for homes connected to a central battery with feeds from renewable energy and grid electricity

Consider the case where a high-rise apartment block is connected to a battery that stores energy from solar photovoltaic panels and the electricity grid. Typically, the battery would discharge electricity to homes in the apartment block whether the electricity supply comes from solar panels or the grid. Hence, the scenario opens up serious questions on … More Challenges of pricing electricity for homes connected to a central battery with feeds from renewable energy and grid electricity

Subsidies for electric car distorts the car market and incurs a cost to taxpayers

Schemes for improving the market uptake of electric cars for improving air quality typically involves some form of subsidies for the purchase, operation or ownership of electric cars. One such scheme involves a subsidy for the purchase price of electric cars. Implemented in California, U.S., it distorts the car market and represents a cost to … More Subsidies for electric car distorts the car market and incurs a cost to taxpayers

Carbon capture and use utilize carbon dioxide for producing useful products

Carbon capture and storage (CCS) refers to the capture of carbon dioxide from waste gas streams such as flue gas of power stations and store it without release into the atmosphere. Typically, captured carbon dioxide are either stored underground in geological formations or sequestered after separating the compounds formed between carbon dioxide and amine solutions … More Carbon capture and use utilize carbon dioxide for producing useful products

Subsidies for spare electricity generation capacity of fossil fuel power plants in an electricity grid with high proportion of renewable energy generation

Renewable energy’s share of total energy production is increasing in many parts of the world, and this would have a substantial impact on energy resilience of electricity grid, particularly in maintaining a stable flow of electricity to end-users in the event of lack of generation of renewable energy.   To smooth out the fluctuations in … More Subsidies for spare electricity generation capacity of fossil fuel power plants in an electricity grid with high proportion of renewable energy generation

Resilience of electricity system with high proportion of renewable power generation

Renewable energy such as solar and wind power’s share of the energy mix is increasing in many parts of the world. While increasing proportion of renewable energy helps reduce the carbon footprint of electricity generation and reduce the impacts on climate change, low frequency events such as weather non-favourable to renewable energy generation may impose … More Resilience of electricity system with high proportion of renewable power generation

Potential high transmission cost of electricity from offshore solar farm

Solar power scale linearly with the collecting area of the photovoltaic panels. Given the scarcity of low-cost land in major cities around the world, lack of space has presented as a significant constraint to the future expansion of solar power as part of a changing energy mix for cities. Thus, various ideas and proposals have … More Potential high transmission cost of electricity from offshore solar farm

Land price is a cost item for solar power generation

Solar power scale linearly with surface area. Thus, land is a critical cost component for the production of solar power and plays a critical role in determining the location of solar farms. Typically, solar farms are situated in areas with lower land cost such as the outskirts of a city. Newer designs of solar farms … More Land price is a cost item for solar power generation

Drilling multiple layers of shale formation for oil

Hydraulic fracturing uses a combination of high pressure water and horizontal drilling to access oil trapped in previously untapped shale formation. With the technique, oil previously inaccessible has been opened up for exploration and exploitation. But, the technique typically drilled a single shale layer using a smaller number of wells. Improvements in the technique has … More Drilling multiple layers of shale formation for oil

Essentiality of feed-in tariffs in support of renewable energy adoption?

Feed-in tariffs are commonly applied in support of greater adoption of renewable energy generation by a country, state or city. Briefly, feed-in tariffs pay for the difference in price between the production cost of renewable energy and the price of grid electricity. However, are they essential or could renewable energy compete competitively with non-renewable energy … More Essentiality of feed-in tariffs in support of renewable energy adoption?

Comparing environmental performance of electric and hybrid vehicles

Hybrid and electric vehicles both aim to reduce the impact of cars on the environment such as in mitigating climate change and reducing local air pollution. However, their different technology platforms set an inherent threshold on the amount of protection that they could offer to the environment. For example, electric vehicles could only offer protection … More Comparing environmental performance of electric and hybrid vehicles